Concept explainers
Interpretation: The use of ideal
Concept Introduction: An ideal gas law can be explained using a general gas equation known as ideal gas equation. In this equation P, V, n, R and T are related to each other. Here, R is Universal gas constant which is same for all type of ideal gases. The value of R is
Explanation of Solution
The ideal gas equation is represented as follows:
Here, P is pressure, V is volume, n is number of moles, R is Universal gas constant and T is temperature.
In the above equation, there are 4 variables and 1 constant. If values of 3 variables are known, the value of unknown variable can be calculated.
For example, if P, V and T is given for a gas, the number of moles of gas can be calculated by rearranging the above equation as follows:
Here, R is Universal gas constant with value
Also, the relation between two variables can be explained by keeping other two variables constant.
For example, the ideal gas law can be used to show the relation between P and T when number of moles and Volume of the gas are kept constant.
Or,
Here, 1 and 2 represents initial and final values.
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